Dalechampia (Euphorbiaceae, Acalyphoideae): synopsis of species from Northeast Brazil

Abstract

A synopsis of the Dalechampia from Northeastern Brazil is presented here, with discussions of their diagnostic features. The study was based on the analysis of herbarium material (including historical collections and types), specimens collected in the field, and bibliographic documentation. Twenty-eight species distributed among five sections were recognized, 19 of them endemic to Brazil. Most of the species are found in Caatinga and Atlantic Forest vegetation. A key for species identifications is provided, together with illustrations, and information on their geographic distributions and conservation statuses.

Synoptic treatment of Dalechampia (Euphorbiaceae) from Espírito Santo, Brazil: distribution, morphology, illustration and new occurrences

“…3a), although there is a notable variation in habit, such as erect or decumbent subshrubs, these are not found in the state, however they are quite common in the region Central-West of Brazil (Webster & Armbruster 1991;Pereira-Silva in prep. ;Pereira-Silva et al 2020c). The branches are generally striated, angular, cylindrical, and are glabrescent, pubescent, villous, or hirsute (Fig.…”

“…In Dalechampia the pseudantial inflorescence are usually colored, composed of a pleiochasium and pistillate cymule, as well as a resin gland (Fig. 4a,d) (Armbruster 1996;Pereira-Silva et al 2020c). The species registered in this study present greenish, whitish, creamy, or pink to purplish involucral bracts; entire, 3-spit, 3-lobed, 3-toothed or deeply 3-5-lobed (see .…”